Ferroli OMNIA M 3.2 22T Manual De Instalación Y Del Propietario página 101

OMNIA M 3.2
8.7 Application 7
The units are installed in parallel and can be used for cooling, heating and hot water.
• 6 units can be connected in parallel. Please refer to 9.7.5 for the parallel system electrical control system connection
diagram.
• The parallel system can control and view the operation of the entire system only by connecting the master to the wire
controller;
• If the DHW function is required, the water tank can only be connected to the master unit water circuit through a three-way
valve, and controlled by the master unit;
• If you need to link with AHS, the AHS can only be connected to the master waterway and controlled by the master unit;
• The connection and function of the terminal are the same as the single unit, please refer to the application 8.1-8.6;
Coding Assembly unit
1-1 Outdoor unit: master
1-2...1-n Outtdoor unit: slave
2 Y-shape filter
3 Stop valve (field supply)
4 Wired controller
6 Drain valve (field supply)
7 Fill valve (field supply)
8 Balance tank (field supply)
8.1 Air purge valve
8.2 Drain valve
9 Expansion vessel (field supply)
10 P_o: Outside circulation pump (field supply)
11 Collector / distributor (field supply)
12 Domestic hot water tank (field supply)
12.1 Air purge valve
12.2 Heat exchanger coil
12.3 Booster heater
• The volume of balance tank (8) should be greater than (40*n)L. The drain valve (6) should be installed at the lowest
positon of the system.
• The water inlet and outlet pipe joints of each unit of the parallel system should be connected with soft connections,
and one-way valves must be installed at the water outlet pipe;
• The Tbt1 temperature sensor must be installed in the parallel system (otherwise unit cannot be started), the
temperature point is set in the balance tank (8).
22T÷30T
Coding
FHL 1...n
FCU 1...n
NOTE
Cod. 3QE47660 - Rev. 00 - 02/2022
Assembly unit
13 T5: DHW tank temp, sensor
14 Hot water tap (field supply)
15 P_d: DHW pump (field supply)
16 One way valve (field supply)
17 Bypass valve (field supply)
18 SV1: 3-way valve (field supply)
19 SV2: 3-way valve (field supply)
23 Mixing station (field supply)
23.1 SV3: 3-way valve (field supply)
23.2 P_c: zone 2 pump (field supply)
24 Tw2: Zone 2 water flow temp, (individual purchase)
Tbt1: Balance tank temp, sensor (individual
25
purchase)
Floor heating loop (field supply)
Fan coil units (field supply)
AHS Additional heating source (boiler) (field supply)
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101
EN